package ex36;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main {
	
	public static void main(String[] args) throws IOException {
		
		InputStreamReader it = new InputStreamReader(System.in);
		BufferedReader in = new BufferedReader(it);
		
		double a, b, c, delta, x1, x2;
		
		a = Double.parseDouble(in.readLine());
		b = Double.parseDouble(in.readLine());
		c = Double.parseDouble(in.readLine());
		
		delta = Math.pow(b, 2) - 4 * a * c;
		
		x1 = (-b + Math.pow(delta, 2)) / 2 * a;
		x2 = (-b - Math.pow(delta, 2)) / 2 * a;
		
		
	}

}
